Top Side Effects of Cyanocobalamin (Intramuscular)
abdominal painbleeding from gumsbleeding from noseblue fingernailsblue lipschest painchest tightnesscoughcoughingdecrease in urine outputdifficult breathingdifficulty swallowingdilated neck veinsdizzinessextreme fatigueeyelid swellingeye paineye swellingface swellingfast breathingfast heartbeatgeneral weaknessheadachehivesincreased sweatingirregular breathingirregular heartbeatitchinessnoisy breathingpale skinpink frothy sputumpuffiness around the eyepuffiness around the facepuffiness of eyelidspuffiness of the lipspuffiness of the tongueringing in earsskin rashswelling in legswelling in the feet